下面对秦朝统一的说法正确的有

①秦朝统一时间是公元前221年

②秦朝的都城设在咸阳。秦朝的统一，顺应了历史发展的趋势

③秦朝的统一结束了春秋战国以来的诸侯分立和相互混战，开创了中国历史上大一统的局面

④秦朝统一，严重危害人民的生产、生活和生命安全。[ ]

A．①②

B．①②③

C．①②③④

D．②③④

I hear _____  boys in your school like playing football in their spare time, though others prefer basketball. [ ]

A. quite a lot

B. quite a few

C. quite a bit

D. quite a little